259695031 has 2 divisors, whose sum is σ = 259695032. Its totient is φ = 259695030.

The previous prime is 259695019. The next prime is 259695083. The reversal of 259695031 is 130596952.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 259695031 - 2¹³ = 259686839 is a prime.

It is a super-2 number, since 2×259695031² = 134883018252181922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259695011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129847515 + 129847516.

It is an arithmetic number, because the mean of its divisors is an integer number (129847516).

Almost surely, 2^259695031 is an apocalyptic number.

259695031 is a deficient number, since it is larger than the sum of its proper divisors (1).

259695031 is an equidigital number, since it uses as much as digits as its factorization.

259695031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72900, while the sum is 40.

The square root of 259695031 is about 16115.0560346528. The cubic root of 259695031 is about 638.0007853359. Note that the first 3 decimals are identical.

The spelling of 259695031 in words is "two hundred fifty-nine million, six hundred ninety-five thousand, thirty-one".